2/15/2021
Pushover analysis first steps - Tutorials - Computers and Structures, Inc. - Technical Knowledge Base
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Pushover analysis first steps
Created by Ondrej, last modified on Mar 27, 2019
Tutorial
Name:
Pushover analysis first steps
Description:
Guidelines for performing pushover analysis.
Program:
SAP2000
Version:
12.0.1
Model ID:
na
 This tutorial was initially written for SAP2000, though the general procedure also applies to CSiBridge.
On this page:
An overview of the procedure for pushover analysis is given as follows:
Create the computational model
Create the computational model, without pushover data, using conventional modeling techniques.
Define properties for pushover hinges using Define > Section Properties > Hinge Properties. Hinges may be defined
manually or by using one of several default specifications which are available.
Assign the pushover hinges to selected frame objects using Assign > Frame > Hinges.
Select Define > Load Patterns to define load patterns which will contain the loads applied during pushover analysis.
Define a nonlinear static load case
Select Define > Load Cases > Add New Load Case to define a nonlinear static Load case which will apply the
previously-defined load pattern. This load case may be force-controlled (pushed to a specified force level) or
displacement-controlled (pushed to a specified displacement).
Select Other Parameters > Results Saved to Multiple States such that various parameters may be plotted for each
increment of applied loading.
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2/15/2021
Pushover analysis first steps - Tutorials - Computers and Structures, Inc. - Technical Knowledge Base
Run the analysis
Select Analyze > Run Analysis to run the static-pushover analysis.
Review results
To plot base shear vs. monitored displacement, select Display > Show Static Pushover Curve. Additional variables are
also available for plotting.
To plot hinge deformation vs. applied loading, select Display > Show Hinge Results. Moment as a function of plastic
rotation is one such option.
To review displacement and the step-by-step sequence of hinge formation, select Display > Show Deformed Shape.
To review member forces on a step-by-step basis, select Display > Show Forces/Stresses > Frames/Cables.
Select Display > Show Plot Functions to plot response at each step of the pushover analysis, including joint
displacement, frame member forces, etc.
See Also
CSI Analysis Reference Manual (Nonlinear Static Analysis > Static Pushover Analysis, page 394)
Habibullah, A., Pyle, S. (1998). Practical Three Dimensional Nonlinear Static Pushover Analysis , Computers and
Structures, Inc., Berkeley, CA
CSI Watch & Learn video series, SAP2000 Tutorial 21, Static Pushover Analysis
first-steps
pushover
sap2000
hinge
nonlinear
complete
bridge-modeler
csibridge
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